Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.
About Svix
What is Svix?
Svix is a fully managed webhook delivery service that handles the complexity of sending, retrying, monitoring, and securing webhooks at scale. It solves the common pain of building reliable webhook infrastructure in-house.
Who is it for?
Svix is built for B2B SaaS teams that need to send webhooks to customers reliably. It suits startups, mid-market companies, and enterprises (including Fortune 500) that want to stop maintaining custom webhook systems and focus on core product.
Key use cases
Companies use Svix to offload webhook retries, idempotency, security (SSRF prevention, replay attack protection), and customer-facing management UI. Typical examples include sending order updates, payment notifications, or workflow triggers to customer endpoints.
Key features
- Automatic Retries — Smart retry logic ensures delivery even when customer endpoints fail or hang.
- Logs and Monitoring — Track deliverability, disable failing endpoints, and notify customers.
- Security — Built-in protection against SSRF, replay attacks, and unauthenticated events.
- Application Portal — Embeddable UI for customers to manage endpoints, view logs, and inspect reports.
- Developer Experience — Simple API, SDKs, and ability to test, inspect, and replay webhooks.
- Standard Webhooks Compliant — Follows the industry-standard spec for secure, reliable delivery.
SaaSpartout Score
Editorial score from our review methodology — not user ratings.
Svix Pricing
Svix pricing: from $0/mo.
For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Free
$0/month — 200 messages/second, 30-day payload retention, 99.9% uptime SLA, embeddable webhooks UI, connectors & transformations. No credit card required.
Professional
$490/month — 800 messages/second, 90-day payload retention, 99.99% SLA, fully unbranded experience, white label headers, static source IPs.
Enterprise
Contact sales — Custom rate limits, 99.999% SLA, advanced endpoint types, OpenTelemetry log streaming, enterprise security & compliance, SSO (OIDC/SAML), cloud and on-prem options.
Only attempted or transformed messages count toward usage. Retries and filtered messages are free. Startup plans available.
